Come and join the Web team at CERN - where it all began: CERN, the birthplace of the World Wide Web and the world's largest particle physics laboratory!

CERN has an opening for an Early Career Graduate (Origin) as a Full-Stack Developer in the Web Team, part of the Media and Digital Communications (PRD) section in the Education, Communication and Outreach (ECO) group in the Stakeholders Relations (SR) sector.

You will gain lots of experience by having the unique opportunity to work in a multinational, multi-discipline and diverse environment. Developing web applications using some of the most popular and modern tools and programming languages. The main prerequisite is a desire to learn, and an enthusiasm to work as part of the Web Team.

Your responsibilities:

• Share the Web Team's work and take part in the design and development sprints for the CERN core websites, web tools, and web applications, in a role combining full-stack development and website management.
• Develop and maintain the CERN WordPress Distribution (themes, plugins, APIs, etc.).
• Manage and support CERN's WordPress websites.
• Collaborate with designers to create intuitive, user-friendly interfaces.
• Participate in the support of the CERN WordPress Community.

Your profile:

• Content management system development (e.g. WordPress), developing and maintaining static and dynamic content rendering, and modern development practices or modern WordPress development.
• Modern front-end frameworks (e.g., React, Vue.js).
• Version control (Git) and modern development workflows.
• Configuration management: building/maintaining configuration templates and parameters (OpenShift and OpenStack).

Skills:

• Modern web development: PHP, JavaScript (including modern ES6+), CSS (SASS) and HTML.
• Database management systems (MySQL/PostgreSQL) and data migration techniques.
• Automated testing frameworks and continuous integration/continuous deployment (CI/CD) pipelines.
• Container-based technologies (e.g. Docker) and deployment workflows.
• Spoken and written English, with a commitment to learn French.

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State.
• By the application deadline, you have a maximum of two years of professional experience since graduation in Computer Science, Software Enginineering (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

Job closing date: 11.01.2026 at 23:59 CET.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Job flexibility: Fully Onsite

Target start date: 01-March-2026

Job reference: IR-ECO-PRD-2025-301-GRAE

Field of work: International Relations

Benchmark job: 200020 - Computing Engineer